Graphing/Trending; Communications Menu - Walchem WebMaster ONE Instruction Manual

Log files that are actively filling will be erased (after a warning pop-up) if the user changes critical
parameters such as:

The parameter being logged

The alarm used to trigger the log

The logging duration

The logging interval
Or for the related inputs used for alarm triggered logging

The type of sensor or analog input

The units of measure of the sensor or analog input

The type of digital input of the trigger DI
The Logging Interval may increase automatically if the memory required for the Auto Report Data
Log increases.
6.45

Graphing/Trending

Recent data may be viewed in a graphic format on-line without downloading it to a computer first,
and without opening it in a spreadsheet.
At the top of the page, a selection of boxes will be displayed. Check the box of the parameter that
you would like to see graphed. The choices will be any direct sensor input and any 4-20mA input
that is being used. Then select the Time Span of the data by selecting it from the pull-down. The
choices are Last Hour, 2, 4, 8 and 12 hours, Day, 7 Days, 14 Days and 32 Days.
Data points used in the graphs are taken every minute in the case of the Last 1, 2, 4, 8, and 12 hour
views, every 3 minutes in the Last Day, and every 20 minutes in the other views.
Click the Submit button for the changes to take effect.
The graphs selected will be presented below the check boxes on the web page. You may view
details by moving your mouse over the portion of the graph that is of interest. The date, time and
data of that coordinate will be displayed in the upper right hand corner of the graph.
The graph may be incorporated into a report document. Click on the "Export Graph" button. If you
have a popup blocker installed, you will need to disable it. The graph will be converted to a jpg
file and open in a new window. Click on File and Save as to save the image. You can also right-
click the image, select copy, and then paste the image into your report.
6.46

Communications Menu

Internet Dial Up Account (only appears if a modem is installed)
Controller ISP User Name
When the controller needs to dial out and connect to the Internet Service Provider, it needs to
identify itself with a user name, so that the ISP knows that it has an account. Type in the text box
the user name that the controller will use.
Controller ISP Password
Similarly, the controller needs to identify itself with a password in order to connect with the ISP.
Type in the text box the password that the controller will use. The password can also be changed
here.
140